Bobbie A. Berkowitz, Ph.D., R.N., FAAN, is currently the Dean and Mary O’Neil Mundinger Professor of Nursing at Columbia University School of Nursing and senior vice president of the Columbia University Medical Center. She was previously the Alumni Endowed Professor of Nursing and Chair of the Department of Psychosocial and Community Health at the University of Washington School of Nursing and adjunct professor in the School of Public Health and Community Medicine. In addition, she served as a consulting professor with Duke University and the University of California at Davis. Dr. Berkowitz directed the NIH/NINR funded Center for the Advancement of Health Disparities Research and the National Program Office for the RWJF funded Turning Point Initiative. She joined the faculty at the University of Washington after having served as deputy secretary for the Washington State Department of Health and chief of nursing services for the Seattle-King County Department of Public Health. Dr. Berkowitz has been a member of the Washington State Board of Health, the Washington Health Care Commission, the board of the American Academy of Nursing, and chaired the Board of Trustees of Group Health Cooperative. She serves on a number of editorial boards, including the Journal of Public Health Management and Practice, and American Journal of Public Health, Policy, Politics, and Nursing Practice, and as associate editor of Nursing Outlook. Dr. Berkowitz is an elected fellow in the American Academy of Nursing and elected member of the Institute of Medicine. She holds a Ph.D. in nursing science from Case Western Reserve University and an M.A. in nursing and a B.S. in nursing from the University of Washington. Her areas of expertise and research include public health systems and health equity.

Leigh F. Callahan, Ph.D., has research interests including self-management of disease outcomes, musculoskeletal outcomes, evaluation of exercise and arthritis, and social predictors of chronic disease outcomes. Dr. Callahan has 20-plus years of experience in arthritis and health outcomes research, and experience in public health as a former arthritis epidemiologist with the Centers for Disease Control and Prevention. She has authored more than 170 publications and articles, is a frequent presenter at conferences and meetings worldwide, and continues to spearhead a number of projects examining the factors surrounding arthritis and physical activity, health outcomes, and health disparities. Dr. Callahan received her B.S. in radiologic science from the University of North Carolina and her Ph.D. in public policy from Vanderbilt University. She is an associate professor in the Departments of Medicine and Social Medicine and an adjunct associate professor in the Department of Epidemiology at the University of North Carolina at Chapel Hill. She is the director of the Multidisciplinary Clinical Research Center’s Methodology Core at the Thurston Arthritis Research Center, codirector of the North Carolina Family Medicine Research

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